eu.etaxonomy.taxeditor.navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/navigator/handler/RemotingChangeAcceptedTaxonToSynonymHandler.java

   1 /**
   2  *
   3  */
   4 package eu.etaxonomy.taxeditor.navigation.navigator.handler;
   5
   6 import java.util.ArrayList;
   7 import java.util.List;
   8 import java.util.UUID;
   9
  10 import org.apache.log4j.Logger;
  11 import org.eclipse.core.commands.ExecutionEvent;
  12 import org.eclipse.core.commands.operations.AbstractOperation;
  13 import org.eclipse.core.runtime.IStatus;
  14 import org.eclipse.core.runtime.Status;
  15 import org.eclipse.jface.viewers.TreeSelection;
  16 import org.eclipse.ui.handlers.HandlerUtil;
  17
  18 import eu.etaxonomy.cdm.api.conversation.ConversationHolderMock;
  19 import eu.etaxonomy.cdm.model.taxon.ITaxonTreeNode;
  20 import eu.etaxonomy.cdm.model.taxon.TaxonNode;
  21 import eu.etaxonomy.taxeditor.navigation.navigator.TaxonNavigatorLabels;
  22 import eu.etaxonomy.taxeditor.navigation.navigator.operation.RemotingChangeAcceptedTaxonToSynonymOperation;
  23 import eu.etaxonomy.taxeditor.operation.RemotingCdmHandler;
  24 import eu.etaxonomy.taxeditor.ui.dialog.selection.TaxonNodeSelectionDialog;
  25
  26 /**
  27  * <p>ChangeAcceptedTaxonToSynonymHandler class.</p>
  28  *
  29  * @author n.hoffmann
  30  * @created Jan 4, 2010
  31  * @version 1.0
  32  */
  33 public class RemotingChangeAcceptedTaxonToSynonymHandler extends RemotingCdmHandler {
  34
  35     private static final Logger logger = Logger
  36             .getLogger(RemotingChangeAcceptedTaxonToSynonymHandler.class);
  37
  38
  39     private ITaxonTreeNode oldTaxonNode;
  40
  41         /**
  42      * @param label
  43      */
  44     public RemotingChangeAcceptedTaxonToSynonymHandler() {
  45         super(TaxonNavigatorLabels.CHANGE_ACCEPTED_TAXON_TO_SYNONYM_LABEL);
  46     }
  47     /* (non-Javadoc)
  48      * @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#allowOperations(org.eclipse.core.commands.ExecutionEvent)
  49      */
  50     @Override
  51     public IStatus allowOperations(ExecutionEvent event) {
  52         TreeSelection selection = (TreeSelection) HandlerUtil.getCurrentSelection(event);
  53         // check that only a single taxon tree node has been selected
  54         if(selection.size() > 1) {
  55             return new Status(IStatus.ERROR,
  56                     "unknown",
  57                     TaxonNavigatorLabels.SINGLE_TAXON_SELECTION_MESSAGE);
  58         }
  59
  60         // check for no taxon tree node selected
  61         if(selection.size() == 0) {
  62             return new Status(IStatus.ERROR,
  63                     "unknown",
  64                     TaxonNavigatorLabels.NO_TAXON_SELECTION_MESSAGE);
  65         }
  66
  67         // check that selected object is a taxon node
  68         Object obj = selection.iterator().next();
  69         if(obj instanceof ITaxonTreeNode) {
  70             oldTaxonNode = (ITaxonTreeNode)obj;
  71         } else {
  72             return new Status(IStatus.ERROR,
  73                     "unknown",
  74                     TaxonNavigatorLabels.SELECTED_OBJECT_NOT_TREE_NODE_MESSAGE);
  75         }
  76         // check that the source taxon node does not have children
  77         if(((TaxonNode)oldTaxonNode).getCountChildren() > 0) {
  78             return new Status(IStatus.ERROR,
  79                     "unknown",
  80                     TaxonNavigatorLabels.SOURCE_TAXON_HAS_CHILDREN_MESSAGE);
  81
  82         }
  83
  84         // check if corresponding name editor is closed
  85         boolean editorClosed = NavigatorHandlerUtils.closeObsoleteEditor(event, (TaxonNode) oldTaxonNode);
  86         if(editorClosed != true) {
  87             return new Status(IStatus.ERROR,
  88                     "unknown",
  89                     TaxonNavigatorLabels.RELATED_EDITOR_NOT_CLOSED_MESSAGE);
  90         }
  91
  92         return Status.OK_STATUS;
  93     }
  94     /* (non-Javadoc)
  95      * @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#doOperations(org.eclipse.core.commands.ExecutionEvent)
  96      */
  97     @Override
  98     public AbstractOperation prepareOperation(ExecutionEvent event) {
  99         List<UUID> excludeTaxa = new ArrayList<UUID>();
 100         excludeTaxa.add(oldTaxonNode.getUuid());
 101         TaxonNode newAcceptedTaxonNode = TaxonNodeSelectionDialog.select(HandlerUtil.getActiveShell(event),
 102                 new ConversationHolderMock(),
 103                 "Choose the accepted taxon",
 104                 excludeTaxa,
 105                 null,
 106                 ((TaxonNode)oldTaxonNode).getClassification());
 107
 108         if (newAcceptedTaxonNode == null) {
 109             return null;
 110         }
 111
 112         RemotingChangeAcceptedTaxonToSynonymOperation rcattso =
 113                 new RemotingChangeAcceptedTaxonToSynonymOperation(event.getTrigger(),
 114                         false,
 115                         oldTaxonNode.getUuid(),
 116                         newAcceptedTaxonNode.getUuid());
 117
 118         return rcattso;
 119     }
 120
 121     /* (non-Javadoc)
 122      * @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#onComplete(org.eclipse.core.commands.ExecutionEvent)
 123      */
 124     @Override
 125     public void onComplete() {
 126         // TODO Auto-generated method stub
 127
 128     }
 129
 130
 131
 132
 133 }